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Expired Canadian patentCanada

Use of materials having zinc ionophoric behavior

CA 2481088 C · Owner: Gavin, David F. · Inventors: Marsh, Randall Glenn; Nelson, John D.; Roberts, Katherine P.

CIPO record

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Abstract From the Canadian patent

Disclosed is a method for delivering excess zinc to eukaryotic cells to inhibit the metabolism of the cell, the method comprising treating the cells with a zinc ionophoric that is capable of delivering a zinc ion across a cellular membrane wherein the minimum inhibitory concentration (MIC) of the zinc ionophoric material is less than about 500 ppm.Further disclosed is a method for delivering excess zinc to eukaryotic cells to inhibit the metabolism of the cell, the method comprising treating the cells with a zinc ionophoric material that is capable of delivering a zinc ion across a cellular membrane wherein the zinc ionophoric material is in combination with a zinc containing …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed March 18, 2003 and granted May 26, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 18, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 18, 2003
GrantedMay 26, 2015
Term endedMarch 18, 2023
Patent numberCA 2481088 C
Classification (IPC)A61K33/30 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedMarch 18, 2003Patent grantedMay 26, 2015Term endedMarch 18, 2023

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.